Function vm_fault_disable_pagefaults

freebsd/vm/vm_fault.c:2088–2093

* Block entry into the machine-independent layer's page fault handler by * the calling thread. Subsequent calls to vm_fault() by that thread will * return KERN_PROTECTION_FAILURE. Enable machine-dependent handling of * spurious page faults. */

 * spurious page faults. 
 */
int
vm_fault_disable_pagefaults(void)
{

	return (curthread_pflags_set(TDP_NOFAULTING | TDP_RESETSPUR));
}

void
vm_fault_enable_pagefaults(int save)